/Engine/Plugins/Runtime/NetworkPrediction/Source/NetworkPrediction/Public/NetworkPredictionTickState.h
The long term goal is supporting fixed physics steps without engine fix ticking. There is no guarantee or timeline this will happen though.
struct FFixedTickState
int32
ConfirmedFrame
Latest confirmed local frame number. Anything at or before this frame is "set in stone".
int32
FixedStepMS
FixedStepMS that simulations should use.
float
FixedStepRealTimeMS
Realtime steps.
FInterpolationS...
Interpolation
int32
Offset
Maps ForwardPredicted authority frames to local frame.
int32
PendingFrame
Next frame to be ticked (used as input to generated PendingFrame+1)
int32
PhysicsOffset
Maps PendingFrame toPhysicsRewindData()->CurrentFrame().
Chaos::FRewindD...
PhysicsRewindData
float
UnspentTimeMS
Accumulates raw delta time into our fixed steps, Note this not used when physics recording is enabled since NP must stay in sync with physics tick.